Tag archive for: system administration

How to setup a Raspberry Pi LEMP server with Raspbian Buster Lite for running PHP applications

Many useful applications are written in PHP backed by MariaDB/MySQL for data persistency.

When you wondering what you can use a Raspberry Pi for, one way is to turn it into a LEMP server for hosting PHP applications.

With this in mind, let us look at how we can setup a Raspberry Pi LEMP server with Raspbian Buster Lite for running PHP applications.

How to change the hostname of your Raspberry Pi, running Raspbian, with raspi-config

When you deploy multiple Raspberry Pis in your house, it is a good practice to give each of them a unique hostname. Since the default hostname for Raspbian is raspberrypi, it will be easier to look for the IP address of a new Raspbian installation in this situation.

Given that, let us look at how you can change the hostname of your Raspberry Pi in Raspbian via the Raspberry Pi Software Configuration Tool (raspi-config).

How to enable SPI master driver in Raspbian using raspi-config

Your Raspberry Pi has the ability to communicate with hardware using the Serial Peripheral Interface specification. However, this master driver is disabled by default.

If you want to use the SPI master driver to communicate with devices, then you will need to enable it.

Let’s look at how we can enable the SPI master driver using the Raspberry Pi Software Configuration Tool (raspi-config).

How to host a static website on your Raspberry Pi with Nginx running on Raspbian Buster Lite

After you had understood HTML, CSS and JavaScript from The Web Developer Bootcamp, you can start to host a static website on an actual web server.

If you had been the kind of fan who buy newly-launched Raspberry Pis, then you may find some lying around the house collecting dust.

In this situation, why not use one of your Raspberry Pi to host something that you had just learnt?

Given that, let’s look at how you can host a static website on your Raspberry Pi with Nginx running on Raspbian Buster Lite.

Understanding the default Nginx virtual host (or server) configuration

After you had installed Nginx, one of the first thing to do is to check whether it is running ok.

One way to do so is to use your browser to send a HTTP request to test it.

If you had installed Nginx on your local machine, then you may enter http://localhost or http://127.0.0.1 into the location bar of your browser.

When you had setup Nginx on a separate machine on your home network, you may also enter http://<ip_address_of_the_machine> in the location bar of your browser. For example, in how to host a WordPress website on a Raspberry Pi with Raspbian Buster Lite and Nginx, I had entered http://192.168.1.114 as the location to test out the Nginx server running on my Raspberry Pi.

So be it http://localhost, http://127.0.0.1, http://<ip_address_of_the_machine>, you will always see this page on your browser screen:

default welcome page of Nginx 1.14.2

In case you are wondering why your Nginx behaves this way, this post will explain what the default Nginx Virtual Host configuration does to Nginx.

How to host a WordPress website on a Raspberry Pi with Raspbian Buster Lite and Nginx

If you are thinking of starting a blog about computer technology, then you can consider hosting a WordPress website on your Raspberry Pi.

Since Raspberry Pi is a capable machine that does not take up too much space and power, it is a good as a web server.

In addition, if you have an Internet subscription that does not block port 80 and 443, hosting a WordPress at home can be cost effective.

Given these points, let’s look at how we can host a WordPress website on a Raspberry Pi with Raspbian Buster and Nginx.

Installing Certbot on Raspbian Buster for obtaining Let’s Encrypt’s browser-trusted certificates for your Raspberry Pi server applications

Certbot + Raspbian logo

When you build Raspberry Pi server projects with Raspbian Buster, browser-trusted certificates can be needed.

Since the inception of Let’s Encrypt, many webmasters had been able to deploy web applications that encrypt communication channels with browser-trusted certificates.

Most importantly, Let’s Encrypt provide all the magic for free.

Let’s Encrypt certificates are automatically issued by software participating in the ACME protocol. Therefore, we will need to run such a software on a Raspberry Pi web server for serving HTTPS with browser-trusted certificates.

Given that, let’s see how we can install Certbot on Raspbian Buster.

How to setup Raspbian Buster Lite for Raspberry Pi server projects

When I did a review for Raspberry Pi 4 Model B, the idea of using the Pi 4 for server applications is clear. Since Raspbian Buster Lite was released alongside the Pi 4, we can use it for new Raspberry Pi server projects. If you are thinking of building Raspberry Pi server projects, then you […]

How to setup a small and powerful computer with Ubuntu 19.04 Desktop and Odroid H2

After implementing some easy and effective ways to make money with my website, I was able to earn some budget for a developer’s machine.

So what is a single board computer that is small and powerful?

After doing some research, I set my eyes on the Odroid H2.

Once I had received all the hardware components, I proceeded with setting up Ubuntu 19.04 Desktop on my Odroid H2.

In case you need a reference, this is how you can setup Ubuntu 19.04 Desktop on an Odroid H2.